The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON)
The elastic optical network (EON) fulfills the upcoming generation network requirements such as high-definition videos, high bandwidth demand services, and ultra-high-definition televisions. The key issues in EON are routing spectrum assignment and spectrum fragmentation for spectrum allocation. The...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | International Journal of Optics |
| Online Access: | http://dx.doi.org/10.1155/2022/8160054 |
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| author | S. Selva Kumar J. Kamalakannan R. Seetha N. Asha Kiruba Thangam Raja S. Sree Dharinya M. Sucharitha S. Kalaivani |
| author_facet | S. Selva Kumar J. Kamalakannan R. Seetha N. Asha Kiruba Thangam Raja S. Sree Dharinya M. Sucharitha S. Kalaivani |
| author_sort | S. Selva Kumar |
| collection | DOAJ |
| description | The elastic optical network (EON) fulfills the upcoming generation network requirements such as high-definition videos, high bandwidth demand services, and ultra-high-definition televisions. The key issues in EON are routing spectrum assignment and spectrum fragmentation for spectrum allocation. The spectrum fragmentation issues are resultant in poor consumption of spectrum resources and an increase in the new connection blocking. A flexible defragmentation algorithm must utilize more spectrum resources with a high transmission rate. This paper presents a new multiconstrained defragmentation algorithm (MCDFA) for elastic optical networks. The MCDFA addressed two key issues: spectrum allocation for new connections and then reconfiguring the existing connections in a nondisruptive manner. The first-last-exact fit spectrum allocation policy assigns the spectrum slots during the new connection request. It splits each light path request by disjoint/ nondisjoint and by efficiently handling the small fragmented slots in spectrum resources. The simulation results are evaluated using standard metrics such as bandwidth blocking probability, bandwidth fragmentation ratio, and spectrum utilization gain. The results also demonstrated that our proposed algorithm generates promised solution to EON’s routing, spectrum assessment, and fragmentation issues. |
| format | Article |
| id | doaj-art-fe69022e0fe74c35a78b80f6bdaf12df |
| institution | Kabale University |
| issn | 1687-9392 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Optics |
| spelling | doaj-art-fe69022e0fe74c35a78b80f6bdaf12df2025-02-03T06:13:33ZengWileyInternational Journal of Optics1687-93922022-01-01202210.1155/2022/8160054The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON)S. Selva Kumar0J. Kamalakannan1R. Seetha2N. Asha3Kiruba Thangam Raja4S. Sree Dharinya5M. Sucharitha6S. Kalaivani7School of Computer Science and Engineering (SCOPE)School of Information Technology and Engineering (SITE)School of Information Technology and Engineering (SITE)School of Information Technology and Engineering (SITE)School of Information Technology and Engineering (SITE)School of Information Technology and Engineering (SITE)School of Electronics Engineering (SENSE)School of Information Technology and Engineering (SITE)The elastic optical network (EON) fulfills the upcoming generation network requirements such as high-definition videos, high bandwidth demand services, and ultra-high-definition televisions. The key issues in EON are routing spectrum assignment and spectrum fragmentation for spectrum allocation. The spectrum fragmentation issues are resultant in poor consumption of spectrum resources and an increase in the new connection blocking. A flexible defragmentation algorithm must utilize more spectrum resources with a high transmission rate. This paper presents a new multiconstrained defragmentation algorithm (MCDFA) for elastic optical networks. The MCDFA addressed two key issues: spectrum allocation for new connections and then reconfiguring the existing connections in a nondisruptive manner. The first-last-exact fit spectrum allocation policy assigns the spectrum slots during the new connection request. It splits each light path request by disjoint/ nondisjoint and by efficiently handling the small fragmented slots in spectrum resources. The simulation results are evaluated using standard metrics such as bandwidth blocking probability, bandwidth fragmentation ratio, and spectrum utilization gain. The results also demonstrated that our proposed algorithm generates promised solution to EON’s routing, spectrum assessment, and fragmentation issues.http://dx.doi.org/10.1155/2022/8160054 |
| spellingShingle | S. Selva Kumar J. Kamalakannan R. Seetha N. Asha Kiruba Thangam Raja S. Sree Dharinya M. Sucharitha S. Kalaivani The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) International Journal of Optics |
| title | The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) |
| title_full | The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) |
| title_fullStr | The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) |
| title_full_unstemmed | The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) |
| title_short | The Effectual Spectrum Defragmentation Algorithm with Holding Time Sensitivity in Elastic Optical Network (EON) |
| title_sort | effectual spectrum defragmentation algorithm with holding time sensitivity in elastic optical network eon |
| url | http://dx.doi.org/10.1155/2022/8160054 |
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